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A330709 Two-column table read by rows: pairs (i,j) in order sorted from the left.

%I A330709 #29 Aug 06 2020 15:44:47
%S A330709 0,0,1,0,1,1,2,0,2,1,2,2,3,0,3,1,3,2,3,3,4,0,4,1,4,2,4,3,4,4,5,0,5,1,
%T A330709 5,2,5,3,5,4,5,5,6,0,6,1,6,2,6,3,6,4,6,5,6,6,7,0,7,1,7,2,7,3,7,4,7,5,
%U A330709 7,6,7,7,8,0,8,1,8,2,8,3,8,4,8,5,8,6,8,7,8,8,9,0,9,1,9,2,9,3,9,4,9,5,9,6,9,7,9,8,9,9,10,0
%N A330709 Two-column table read by rows: pairs (i,j) in order sorted from the left.
%H A330709 Mehmet A. Ates, <a href="/A330709/b330709.txt">Table of n, a(n) for n = 0..1500</a>
%t A330709 TwoDVectors = List[];
%t A330709 SeqSize = 20;
%t A330709 For[i = 0, i <= SeqSize, i++,
%t A330709   For[j = 0, j <= i, j++,
%t A330709     AppendTo[TwoDVectors, {i, j}]
%t A330709   ]
%t A330709 ];
%t A330709 Flatten[TwoDVectors]
%Y A330709 a(2n)= A003056(n),
%Y A330709 a(2n+1)= A002262(n).
%Y A330709 Cf. A331195.
%K A330709 nonn,easy
%O A330709 0,7
%A A330709 _Mehmet A. Ates_, Jun 08 2020